linux/drivers/staging/vt6655/channel.c
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   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
   4 * All rights reserved.
   5 *
   6 * File: channel.c
   7 *
   8 */
   9
  10#include "baseband.h"
  11#include "channel.h"
  12#include "device.h"
  13#include "rf.h"
  14
  15static struct ieee80211_rate vnt_rates_bg[] = {
  16        { .bitrate = 10,  .hw_value = RATE_1M },
  17        { .bitrate = 20,  .hw_value = RATE_2M },
  18        { .bitrate = 55,  .hw_value = RATE_5M },
  19        { .bitrate = 110, .hw_value = RATE_11M },
  20        { .bitrate = 60,  .hw_value = RATE_6M },
  21        { .bitrate = 90,  .hw_value = RATE_9M },
  22        { .bitrate = 120, .hw_value = RATE_12M },
  23        { .bitrate = 180, .hw_value = RATE_18M },
  24        { .bitrate = 240, .hw_value = RATE_24M },
  25        { .bitrate = 360, .hw_value = RATE_36M },
  26        { .bitrate = 480, .hw_value = RATE_48M },
  27        { .bitrate = 540, .hw_value = RATE_54M },
  28};
  29
  30static struct ieee80211_rate vnt_rates_a[] = {
  31        { .bitrate = 60,  .hw_value = RATE_6M },
  32        { .bitrate = 90,  .hw_value = RATE_9M },
  33        { .bitrate = 120, .hw_value = RATE_12M },
  34        { .bitrate = 180, .hw_value = RATE_18M },
  35        { .bitrate = 240, .hw_value = RATE_24M },
  36        { .bitrate = 360, .hw_value = RATE_36M },
  37        { .bitrate = 480, .hw_value = RATE_48M },
  38        { .bitrate = 540, .hw_value = RATE_54M },
  39};
  40
  41static struct ieee80211_channel vnt_channels_2ghz[] = {
  42        { .center_freq = 2412, .hw_value = 1 },
  43        { .center_freq = 2417, .hw_value = 2 },
  44        { .center_freq = 2422, .hw_value = 3 },
  45        { .center_freq = 2427, .hw_value = 4 },
  46        { .center_freq = 2432, .hw_value = 5 },
  47        { .center_freq = 2437, .hw_value = 6 },
  48        { .center_freq = 2442, .hw_value = 7 },
  49        { .center_freq = 2447, .hw_value = 8 },
  50        { .center_freq = 2452, .hw_value = 9 },
  51        { .center_freq = 2457, .hw_value = 10 },
  52        { .center_freq = 2462, .hw_value = 11 },
  53        { .center_freq = 2467, .hw_value = 12 },
  54        { .center_freq = 2472, .hw_value = 13 },
  55        { .center_freq = 2484, .hw_value = 14 }
  56};
  57
  58static struct ieee80211_channel vnt_channels_5ghz[] = {
  59        { .center_freq = 4915, .hw_value = 15 },
  60        { .center_freq = 4920, .hw_value = 16 },
  61        { .center_freq = 4925, .hw_value = 17 },
  62        { .center_freq = 4935, .hw_value = 18 },
  63        { .center_freq = 4940, .hw_value = 19 },
  64        { .center_freq = 4945, .hw_value = 20 },
  65        { .center_freq = 4960, .hw_value = 21 },
  66        { .center_freq = 4980, .hw_value = 22 },
  67        { .center_freq = 5035, .hw_value = 23 },
  68        { .center_freq = 5040, .hw_value = 24 },
  69        { .center_freq = 5045, .hw_value = 25 },
  70        { .center_freq = 5055, .hw_value = 26 },
  71        { .center_freq = 5060, .hw_value = 27 },
  72        { .center_freq = 5080, .hw_value = 28 },
  73        { .center_freq = 5170, .hw_value = 29 },
  74        { .center_freq = 5180, .hw_value = 30 },
  75        { .center_freq = 5190, .hw_value = 31 },
  76        { .center_freq = 5200, .hw_value = 32 },
  77        { .center_freq = 5210, .hw_value = 33 },
  78        { .center_freq = 5220, .hw_value = 34 },
  79        { .center_freq = 5230, .hw_value = 35 },
  80        { .center_freq = 5240, .hw_value = 36 },
  81        { .center_freq = 5260, .hw_value = 37 },
  82        { .center_freq = 5280, .hw_value = 38 },
  83        { .center_freq = 5300, .hw_value = 39 },
  84        { .center_freq = 5320, .hw_value = 40 },
  85        { .center_freq = 5500, .hw_value = 41 },
  86        { .center_freq = 5520, .hw_value = 42 },
  87        { .center_freq = 5540, .hw_value = 43 },
  88        { .center_freq = 5560, .hw_value = 44 },
  89        { .center_freq = 5580, .hw_value = 45 },
  90        { .center_freq = 5600, .hw_value = 46 },
  91        { .center_freq = 5620, .hw_value = 47 },
  92        { .center_freq = 5640, .hw_value = 48 },
  93        { .center_freq = 5660, .hw_value = 49 },
  94        { .center_freq = 5680, .hw_value = 50 },
  95        { .center_freq = 5700, .hw_value = 51 },
  96        { .center_freq = 5745, .hw_value = 52 },
  97        { .center_freq = 5765, .hw_value = 53 },
  98        { .center_freq = 5785, .hw_value = 54 },
  99        { .center_freq = 5805, .hw_value = 55 },
 100        { .center_freq = 5825, .hw_value = 56 }
 101};
 102
 103static struct ieee80211_supported_band vnt_supported_2ghz_band = {
 104        .channels = vnt_channels_2ghz,
 105        .n_channels = ARRAY_SIZE(vnt_channels_2ghz),
 106        .bitrates = vnt_rates_bg,
 107        .n_bitrates = ARRAY_SIZE(vnt_rates_bg),
 108};
 109
 110static struct ieee80211_supported_band vnt_supported_5ghz_band = {
 111        .channels = vnt_channels_5ghz,
 112        .n_channels = ARRAY_SIZE(vnt_channels_5ghz),
 113        .bitrates = vnt_rates_a,
 114        .n_bitrates = ARRAY_SIZE(vnt_rates_a),
 115};
 116
 117void vnt_init_bands(struct vnt_private *priv)
 118{
 119        struct ieee80211_channel *ch;
 120        int i;
 121
 122        switch (priv->byRFType) {
 123        case RF_AIROHA7230:
 124        case RF_UW2452:
 125        case RF_NOTHING:
 126        default:
 127                ch = vnt_channels_5ghz;
 128
 129                for (i = 0; i < ARRAY_SIZE(vnt_channels_5ghz); i++) {
 130                        ch[i].max_power = 0x3f;
 131                        ch[i].flags = IEEE80211_CHAN_NO_HT40;
 132                }
 133
 134                priv->hw->wiphy->bands[NL80211_BAND_5GHZ] =
 135                                                &vnt_supported_5ghz_band;
 136        /* fallthrough */
 137        case RF_RFMD2959:
 138        case RF_AIROHA:
 139        case RF_AL2230S:
 140        case RF_UW2451:
 141        case RF_VT3226:
 142                ch = vnt_channels_2ghz;
 143
 144                for (i = 0; i < ARRAY_SIZE(vnt_channels_2ghz); i++) {
 145                        ch[i].max_power = 0x3f;
 146                        ch[i].flags = IEEE80211_CHAN_NO_HT40;
 147                }
 148
 149                priv->hw->wiphy->bands[NL80211_BAND_2GHZ] =
 150                                                &vnt_supported_2ghz_band;
 151                break;
 152        }
 153}
 154
 155/**
 156 * set_channel() - Set NIC media channel
 157 *
 158 * @pDeviceHandler: The adapter to be set
 159 * @uConnectionChannel: Channel to be set
 160 *
 161 * Return Value: true if succeeded; false if failed.
 162 *
 163 */
 164bool set_channel(struct vnt_private *priv, struct ieee80211_channel *ch)
 165{
 166        bool ret = true;
 167
 168        if (priv->byCurrentCh == ch->hw_value)
 169                return ret;
 170
 171        /* Set VGA to max sensitivity */
 172        if (priv->bUpdateBBVGA &&
 173            priv->byBBVGACurrent != priv->abyBBVGA[0]) {
 174                priv->byBBVGACurrent = priv->abyBBVGA[0];
 175
 176                BBvSetVGAGainOffset(priv, priv->byBBVGACurrent);
 177        }
 178
 179        /* clear NAV */
 180        MACvRegBitsOn(priv->PortOffset, MAC_REG_MACCR, MACCR_CLRNAV);
 181
 182        /* TX_PE will reserve 3 us for MAX2829 A mode only,
 183         * it is for better TX throughput
 184         */
 185
 186        if (priv->byRFType == RF_AIROHA7230)
 187                RFbAL7230SelectChannelPostProcess(priv, priv->byCurrentCh,
 188                                                  ch->hw_value);
 189
 190        priv->byCurrentCh = ch->hw_value;
 191        ret &= RFbSelectChannel(priv, priv->byRFType,
 192                                ch->hw_value);
 193
 194        /* Init Synthesizer Table */
 195        if (priv->bEnablePSMode)
 196                RFvWriteWakeProgSyn(priv, priv->byRFType, ch->hw_value);
 197
 198        BBvSoftwareReset(priv);
 199
 200        if (priv->byLocalID > REV_ID_VT3253_B1) {
 201                unsigned long flags;
 202
 203                spin_lock_irqsave(&priv->lock, flags);
 204
 205                /* set HW default power register */
 206                MACvSelectPage1(priv->PortOffset);
 207                RFbSetPower(priv, RATE_1M, priv->byCurrentCh);
 208                VNSvOutPortB(priv->PortOffset + MAC_REG_PWRCCK,
 209                             priv->byCurPwr);
 210                RFbSetPower(priv, RATE_6M, priv->byCurrentCh);
 211                VNSvOutPortB(priv->PortOffset + MAC_REG_PWROFDM,
 212                             priv->byCurPwr);
 213                MACvSelectPage0(priv->PortOffset);
 214
 215                spin_unlock_irqrestore(&priv->lock, flags);
 216        }
 217
 218        if (priv->byBBType == BB_TYPE_11B)
 219                RFbSetPower(priv, RATE_1M, priv->byCurrentCh);
 220        else
 221                RFbSetPower(priv, RATE_6M, priv->byCurrentCh);
 222
 223        return ret;
 224}
 225
Hosted by Missing Link Electronics. The original LXR software by the LXR community, this experimental version by lxr@linux.no.